Injection sclerotherapy for varicose veins

Area of Science:

• Vascular Surgery
• Dermatology
• Phlebology

Background:

• Injection sclerotherapy has been a widely used treatment for varicose and thread veins since the 1960s.
• The primary goal is to close off the vein lumen, but evidence on its effectiveness is limited.

Purpose of the Study:

• To evaluate the efficacy of sclerotherapy for symptomatic and cosmetic improvement of varicose veins.
• To assess the complication rates associated with the procedure.
• To determine the recurrence rates of varicose veins after sclerotherapy.

Main Methods:

• A systematic review of randomized controlled trials (RCTs) comparing injection sclerotherapy for varicose veins was conducted.
• Searches were performed in EMBASE and MEDLINE databases up to March 2001, supplemented by hand-searching journals and contacting manufacturers.
• Included RCTs compared different sclerosants, use of local anesthetic, pressure dressings, and compression bandaging techniques.

Main Results:

• No RCTs directly compared sclerotherapy with non-surgical treatments like compression stockings.
• Different sclerosants (e.g., sodium tetradecyl sulphate) and compression methods showed no significant differences in efficacy or complication rates.
• Adding local anesthetic reduced injection pain; compression duration and degree did not impact recurrence, cosmetic appearance, or symptom relief, though increased compression caused discomfort.

Conclusions:

• Randomized controlled trial evidence indicates that the type of sclerosant, local pressure dressing, and compression parameters do not significantly affect sclerotherapy's efficacy for varicose veins.
• These findings support the current clinical use of sclerotherapy, primarily for recurrent varicose veins post-surgery and for thread veins.
• Further comparative studies, particularly between surgery and sclerotherapy, are warranted.